CN106332474A - Rigid-flexible substrate and method for manufacturing the same - Google Patents

Rigid-flexible substrate and method for manufacturing the same Download PDF

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Publication number
CN106332474A
CN106332474A CN201610768330.4A CN201610768330A CN106332474A CN 106332474 A CN106332474 A CN 106332474A CN 201610768330 A CN201610768330 A CN 201610768330A CN 106332474 A CN106332474 A CN 106332474A
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CN
China
Prior art keywords
resin sheet
rigid
thermoplastic resin
flexible
flexible part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610768330.4A
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Chinese (zh)
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CN106332474B (en
Inventor
大坪喜人
吉川孝义
竹泽彰记
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Murata Manufacturing Co Ltd
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Murata Manufacturing Co Ltd
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Publication date
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Publication of CN106332474A publication Critical patent/CN106332474A/en
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Publication of CN106332474B publication Critical patent/CN106332474B/en
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/0278—Rigid circuit boards or rigid supports of circuit boards locally made bendable, e.g. by removal or replacement of material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/46—Manufacturing multilayer circuits
    • H05K3/4688—Composite multilayer circuits, i.e. comprising insulating layers having different properties
    • H05K3/4691—Rigid-flexible multilayer circuits comprising rigid and flexible layers, e.g. having in the bending regions only flexible layers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/028—Bending or folding regions of flexible printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01—Dielectrics
    • H05K2201/0104—Properties and characteristics in general
    • H05K2201/0129—Thermoplastic polymer, e.g. auto-adhesive layer; Shaping of thermoplastic polymer
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
    • H05K2201/09827—Tapered, e.g. tapered hole, via or groove
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
    • H05K2201/09845—Stepped hole, via, edge, bump or conductor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2009—Reinforced areas, e.g. for a specific part of a flexible printed circuit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24488—Differential nonuniformity at margin

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Laminated Bodies (AREA)

Abstract

A rigid-flexible substrate includes a plurality of rigid portions, and a flexible portion connecting the plurality of rigid portions and including a portion of a first resin sheet including at least one layer of a thermoplastic resin sheet, the rigid portions including a portion of the first resin sheet other than the flexible portion, and a second resin sheet including a plurality of thermoplastic resin sheets laminated on one surface or both surfaces of the portion of the first resin sheet other than the flexible portion, and a tapered portion is provided at an end edge of the second resin sheet on a side close to the flexible portion, and a thickness of the tapered portion in a direction in which the second resin sheet is laminated decreases toward the flexible portion and is substantially 0 at a position in contact with the flexible portion.

Description

Rigid and flexible substrate and manufacture method thereof
The present patent application be international application no be PCT/JP2012/059321, international filing date is on April 5th, 2012, enters Enter the Application No. 201280020123.0 of National Phase in China, the invention of entitled " rigid and flexible substrate and manufacture method thereof " The divisional application of patent application.
Technical field
The present invention relates to rigid and flexible substrate and manufacture method thereof.
Background technology
In recent years, the so-called printed base plate being formed with conductor wiring layer on the surface of thermoplastic resin sheet is applicable to electricity Base board, it is mounted with the encapsulation etc. of semiconductor element.Additionally, along with the multiple stratification of wiring, also utilize via conductors by different layers Between conductor wiring layer be electrically connected.
Moreover it is known that there is the rigidity by flexible printed board (flexible part) is integrated with rigid substrates (rigid portion) soft Property substrate.Rigid and flexible substrate is generally of advantages below: its rigid portion has the rigidity equal with rigid substrates, therefore, unit Device installation is excellent, and has a bendability as flexible base board as entirety, thus can be with in the inside of electronic equipment Three-dimensional mode is installed, and can also apply to hinge (bending part) etc..Additionally, flexible base board in the case of individually very Thin and be difficult to process, it is therefore desirable to special installation equipment, but the rigid and flexible substrate that rigid portion has high stiffness can use Existing rigid substrates installation equipment, also has and can improve the such advantage of packing density.
As the method for the hardness improving rigid portion, following methods can be enumerated: use the harder materials such as glass epoxide The method being used as the baseplate material of rigid portion；And make the wiring density of rigid portion higher than flexible part or more set The method etc. of the stacking number of substrate.Patent documentation 1 (Japanese Patent Laid-Open 2002-305382 publication) discloses a kind of rigidity Flexible base board, this rigid and flexible substrate will be formed with conductor cloth in the way of being different from flexible part by the stacking number of rigid portion Line (not shown), the thermoplastic resin sheet 3 of via conductors 4 carry out stacking, and carry out disposal multi-layer punching press and be made (Fig. 5).There is problems in that in the case and easily produce cracking and stripping etc. in the bonding part of rigid portion with flexible part.
On the other hand, patent documentation 2 (Japanese Patent Laid-Open 2004-319962 publication) discloses a kind of flexible steel Property printed wiring board (rigid and flexible substrate), this flexible rigid print wiring plate has a structure that i.e., utilize by having insulation Multi-disc is had rigid substrates (the glass epoxy substrate FR-4 of wiring pattern by the flexible part that the resin sheet of property and flexibility is constituted Deng) link.And disclose by forming chamfering in the end of above-mentioned rigid substrates (side linked with flexible part), repeat Bending strength will not occur deviation because of the difference at position, can suppress the stripping of rigid portion and the office, junction surface of flexible part.
But, the method described in patent documentation 2 is to be processed the printed wiring with to a certain degree hardness by matching plane The method that plate (rigid substrates such as glass epoxy substrate) carries out chamfering.Therefore, with patent documentation 1 described in, by making stacking Number difference forms the rigid and flexible substrate fundamental difference of rigid portion and flexible part.Additionally, in the method for patent documentation 2 record, Printed wiring board needs hardness, to being difficult to correct by the rigid and flexible substrate that soft resin sheet is laminated Grind.Additionally, in matching plane processing, be difficult to correct grinding in the case of components and parts miniaturization, manufacturing cost also can increase Add.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2002-305382 publication
Patent documentation 2: Japanese Patent Laid-Open 2004-319962 publication
Summary of the invention
Invent problem to be solved
It is an object of the invention to provide a kind of boundary portion cracking that can prevent rigid portion and flexible part or peel off, prevent from leading The rigid and flexible substrate of body wiring broken string and manufacture method thereof.
Solve the technical scheme that technical problem is used
The rigid and flexible substrate of the present invention is to include multiple rigid portion and connect the flexible part of the plurality of rigid portion Rigid and flexible substrate, it is characterised in that
Described flexible part is made up of a part for the first resin sheet comprising at least one of which thermoplastic resin sheet,
Described rigid portion is by the part beyond the described flexible part of described first resin sheet and is layered in described first The second tree comprising multi-disc thermoplastic resin sheet on the single or double of the part beyond the described flexible part of resin sheet Fat sheet material is constituted,
Ora terminalis in the flexible part side of described second resin sheet is formed with tapered portion, and described tapered portion is described second Thickness on the stacked direction of resin sheet is more proximate to flexible part and reduces, in the position contacted with flexible part substantially It is zero.
Preferably constitute material and described second resin sheet of composition of the thermoplastic resin sheet of described first resin sheet The material of the thermoplastic resin sheet of material is identical.
Preferably constitute in the multi-disc thermoplastic resin sheet of described second resin sheet, be more remote from described first resin The thermoplastic resin sheet of sheet material, it is the longest to the distance of the boundary face between flexible part and rigid portion.
The surface not contacted with described first resin sheet being preferably described second resin sheet is configured described completely The outermost thermoplastic resin sheet of the second resin sheet is covered.
It is preferably at least any one single or double at the thermoplastic resin sheet constituting described first resin sheet On be laminated with conductor wiring.
It is preferably at least any one single or double at the thermoplastic resin sheet constituting described second resin sheet On be laminated with conductor wiring.
Additionally, the present invention also relates to the manufacture method of described rigid and flexible substrate, the manufacture method of this rigid and flexible substrate Comprise:
A part of upper strata at least one surface of the first resin sheet comprising at least one of which thermoplastic resin sheet The step of folded the second resin sheet comprising multi-disc thermoplastic resin sheet；And
Fetch disposably press by described first resin sheet of stacking and described second resin sheet being carried out hot pressing Connect the step of described thermoplastic resin sheet,
Constitute in the multi-disc thermoplastic resin sheet of described second resin sheet, be more remote from described first resin sheet Thermoplastic resin sheet, it is the longest to the distance of the boundary face between flexible part and rigid portion, thus after thermo-compressed, in institute The ora terminalis of the flexible part side stating the second resin sheet forms described tapered portion.
Additionally, the present invention also relates to the manufacture method of described rigid and flexible substrate, the manufacture method of this rigid and flexible substrate Comprise:
A part of upper strata at least one surface of the first resin sheet comprising at least one of which thermoplastic resin sheet The step of folded the second resin sheet comprising multi-disc thermoplastic resin sheet；And
Fetch disposably press by described first resin sheet of stacking and described second resin sheet being carried out hot pressing Connect the step of described thermoplastic resin sheet,
Constituting in the multi-disc thermoplastic resin sheet of described second resin sheet, outermost thermoplastic resin sheet is hanging down Length on the direction of straight boundary face between flexible part and rigid portion is than other thermoplastic constituting described second resin sheet The length of property resin sheet to be grown, thus after thermo-compressed, in the ora terminalis shape of the flexible part side of described second resin sheet Become described tapered portion.
The effect of invention
According to the present invention, flowed towards flexible part side by the part making the thermoplastic resin of composition rigid portion, it is not necessary to Particularly process and the border of rigid portion and flexible part just can be made to become smooth shape, accordingly, it is capable to improve flexible part with just Property the resistance to bend(ing) of boundary portion in portion, rupture strength, prevent the boundary portion cracking of rigid portion and flexible part and peel off, preventing conductor Wiring broken string.
And, in the case of the material constituting rigid portion is identical material with the material constituting flexible part, by utilizing The crimping process of the thermoplastic resin sheet of disposal multi-layer punching press, can make rigid portion become smooth with the border of flexible part simultaneously Shape, accordingly, it is capable to manufacturing cost is suppressed lower.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of the rigid and flexible substrate of embodiment 1.
Fig. 2 is the cross-sectional schematic of the manufacture method of the rigid and flexible substrate for embodiment 1 is described.
Fig. 3 is the cross-sectional schematic of the rigid and flexible substrate of embodiment 2.
Fig. 4 is the cross-sectional schematic of the manufacture method of the rigid and flexible substrate for embodiment 2 is described.
Fig. 5 is the cross-sectional schematic of existing rigid and flexible substrate.
Detailed description of the invention
Hereinafter each structure of the rigid and flexible substrate of the present invention is described in detail.
[the first resin sheet]
First resin sheet comprises at least one of which thermoplastic resin sheet.Constitute the thermoplastic resin sheet of the first resin sheet The stacking number of material is preferably 1～10 layer, more preferably 2～8 layers, yet more preferably 3～5 layers.
[the second resin sheet]
Second resin sheet comprises multi-disc thermoplastic resin sheet.Constitute the thermoplastic resin sheet of the second resin sheet Stacking number is preferably 2～10 layers, more preferably 2～8 layers, yet more preferably 3～5 layers.
[thermoplastic resin sheet]
Thermoplastic resin sheet includes at least thermoplastic resin.As thermoplastic resin, for example, it is possible to it is sub-to enumerate polyamides Amine, liquid crystal polymer (LCP), polyether-ether-ketone resin (PEEK), polyphenylene sulfide (PPS).Thermoplastic resin sheet is typically The sheet material of the membranaceous grade being made up of the material with electrical insulating property, preferably can be bent by still having flexibility after thermo-compressed Material constituted.
In the rigid and flexible substrate of the present invention, can make as the material of thermoplastic resin sheet, rigid portion and flexible part By identical material, therefore, compared with the situation that material property mixes, can come easy by utilizing the disposable crimping of thermo-compressed Produce the characteristics such as dielectric constant the rigid and flexible substrate of mispairing will not occur.
[conductor wiring]
On at least any one single or double of thermoplastic resin sheet constituting above-mentioned first resin sheet generally It is laminated with conductor wiring.Equally, at least any one one side of the thermoplastic resin sheet constituting above-mentioned second resin sheet Or two-sided upper generally it is laminated with conductor wiring.
Conductor wiring can use various known materials in printed circuit board field, and utilizes known wiring to be formed Method is formed.As Wiring method, for example, it is possible to enumerate following method: conductor foil is being bonded in thermoplastic resin After on the surface of fat sheet material, or not using bonding agent, conductor foil is directly overlapped the table of thermoplastic resin sheet After on face (stacking), the method being etched forming wired circuit to it；It is formed into the conductor of the shape of wired circuit Paper tinsel is crimped on the method on thermoplastic resin sheet；And utilize metal plating method to be formed on the surface of thermoplastic resin sheet The method of circuit.
[via conductors]
Conductor wiring (face inner wire) as required can also be by the via conductors being formed in thermoplastic resin sheet It is electrically connected.Via conductors such as can be formed by the following method: i.e., is being formed with the thermoplastic resin of conductor wiring The assigned position of sheet material forms through hole, utilizes silk screen print method, vacuum packing etc. to be filled in this through hole by conductive paste And formed.
As the forming method of through hole, irradiate for example, it is possible to enumerate from the side contrary with the face being formed with conductor wiring The method that carbon dioxide gas volumetric laser carries out boring a hole.Hereafter, as required, by using the general medicinal liquid process etc. such as mangaic acid Remove the stain (residue of resin) remaining in through hole produced by Laser Processing.
As the conductive paste being filled in through hole, various known conductive paste can be used.As conductive paste Material, for example, it is possible to enumerate the thickener that metal powder and flux ingredients are carried out mix.As metal powder, for example, it is possible to row Lift the metal powder comprising at least one metal in Ag/Cu/Ni and at least one metal in Sn/Bi/Zn.As helping weldering Agent composition, for example, it is possible to enumerate carrier, solvent, thixotropic agent, activating agent etc..
[flexible part, rigid portion]
The rigid and flexible substrate of the present invention includes: multiple rigid portion；And connect the flexible part of above-mentioned multiple rigid portion.Soft Property portion is a part for above-mentioned first resin sheet, is made up of the part not being laminated with the second resin sheet.Rigid portion is by upper State the part beyond the flexible part of the first resin sheet and be layered in this part (beyond the flexible part of the first resin sheet Part) single or double on above-mentioned second resin sheet constituted.That is, the first resin sheet is to constitute flexible part and rigidity The share components in portion, the second resin sheet is only the member of formation of rigid portion.
The rigid and flexible substrate of the present invention ora terminalis in the flexible part side of the second resin sheet is formed with tapered portion.This Bright feature is, the thickness (length of stacked direction) of this tapered portion is more proximate to flexible part and reduces, with flexible part The position of contact is essentially zero.Thus, the border of rigid portion and flexible part can be made to become smooth shape, accordingly, it is capable to improve Flexible part and the resistance to bend(ing) of boundary portion of rigid portion, rupture strength, prevent the boundary portion cracking of rigid portion and flexible part and shell From, prevent conductor wiring from breaking.
It addition, the rigid and flexible substrate of the present invention is preferably following rigid and flexible substrate, this rigid and flexible as required Substrate carries out stacking by multi-disc is formed with the thermoplastic resin sheet of conductor wiring layer and via conductors, and utilizes disposable Multilamellar Sheet Metal Forming Technology carries out thermo-compressed and is made.
＜ embodiment 1 ＞
In present embodiment, use Fig. 1, Fig. 2 that the rigid and flexible substrate of situations below is illustrated, this rigid and flexible base Plate, in the multi-disc thermoplastic resin sheet constituting above-mentioned second resin sheet, nearer it is to the thermoplastic resin of the first resin sheet Fat sheet material, its length on the direction of the boundary face being perpendicular between flexible part and rigid portion is the longest.Fig. 1 is embodiment 1 The cross-sectional schematic of rigid and flexible substrate.Fig. 2 is the rigid and flexible substrate representing embodiment 1 shape before stacking punching press The cross-sectional schematic of state.
As it is shown in figure 1, the rigid and flexible substrate of present embodiment is comprising the first resin of two layers of thermoplastic resin sheet 3 It is laminated with respectively in a two-sided part (becoming the part of rigid portion) for sheet material 1 and comprises the of two layers of thermoplastic resin sheet 3 Two resin sheets 2.Ora terminalis in flexible part (part being only made up of the first resin sheet 1) side of this second resin sheet 2 Being formed with tapered portion 21, the tapered portion 21 thickness on the stacked direction (longitudinal direction in figure) of the second resin sheet 2 is more proximate to Flexible part reduces, and is essentially zero in the position contacted with flexible part.Thus, the border of rigid portion and flexible part can be made Become smooth shape.
In order to manufacture the rigid and flexible substrate of present embodiment, as in figure 2 it is shown, first, the second resin sheet 2 is layered in In a two-sided part (becoming the part of rigid portion) for first resin sheet 1.It follows that by the first resin sheet to stacking Material and above-mentioned second resin sheet carry out hot pressing and fetch and disposably crimp thermoplastic resin sheet, it is thus possible to obtain rigid and flexible Substrate.
Herein, as in figure 2 it is shown, constitute in the multi-disc thermoplastic resin sheet 3 of the second resin sheet 2, it is layered near the The thermoplastic resin sheet 3b of one resin sheet 1 side is at the direction (figure of the boundary face being perpendicular between flexible part and rigid portion In horizontal) on length longer than the length being layered in thermoplastic resin sheet 3a away from the first resin sheet 1 side. That is, the openings of sizes ratio of the opening B being layered in the thermoplastic resin sheet 3a away from the first resin sheet 1 side is layered in close The openings of sizes of the opening A of the thermoplastic resin sheet 3b of the first resin sheet 1 side wants big.Under such laminated arrangement, By the resin local flow that carries out making thermoplastic resin sheet 3 such appropriate under the conditions of thermo-compressed, at the second resin sheet The ora terminalis of the flexible part side of material 2 forms tapered portion 21.
Temperature when disposably crimping the multi-disc thermoplastic resin sheet of stacking is preferably relatively low temperature, the highest Temperature is preferably less than 300 DEG C.If this is because, thermoplastic resin sheet being carried out the thermo-compressed of required above high temperature, then Thermoplastic resin excess flow and the shape of desired tapered portion cannot be obtained.If additionally, due also to more than 300 DEG C, the most especially It is in the case of thermoplastic resin sheet comprises LCP, there is the probability that resin flows out.Additionally, the temperature of thermo-compressed is preferred It is to reach more than 230 DEG C the most within a certain period of time, more preferably reaches 270～290 DEG C.
When thermoplastic resin sheet 3 is disposably crimped, it is preferably and pressurizes on its stacked direction.Example As, the pressed sheet using shape can change according to rigid portion and flexible part thickness in the stacking direction rushes from both sides Pressure, can pressurize with certain pressure.It is preferably from about the stamping pressure of 1～10MPa (such as, 4MPa).
Although it addition, not shown, but as required, it is also possible at the thermoplastic resin sheet 3 constituting the first resin sheet 1 At least any one single or double, constitute the second resin sheet 2 thermoplastic resin sheet 3 at least any one is single Face or two-sided on be laminated with conductor wiring.
Additionally, these conductor wirings (face inner wire) as required can also be by being formed in thermoplastic resin sheet 3 Via conductors be electrically connected.In the case, when thermo-compressed, the resin of thermoplastic resin sheet 3 flows, but quilt The via conductors that conductor wiring (Copper Foil etc.) clips is not easily shifted.It addition, by taking the diameter making the via conductors of downside big Via conductors in upside or to make the via conductors of downside slightly offset towards outside relative to the via conductors of upside such right Plan, via conductors also can turn in the case of flowing when thermo-compressed.
Can also the surface of rigid portion at least some of on plane electrode is set.In addition it is also possible to will be with other electricity The surface solder resist of the plane electrode beyond part that sub-components and parts are connected covers.In addition it is also possible to plane electricity The surface that pole is exposed applies the plating of Ni/Au etc..
It addition, the configuration of rigid portion and flexible part is not limited to the configuration in the only one direction shown in Fig. 1, it is also possible to be Also there is on the direction vertical with paper the two-dimensional arrangement etc. of rigid portion and flexible part.
When the integrated substrate that rigid and flexible substrate is multiple submounts, such as, utilize laser to irradiate or stamping-out is to integrated base Plate cuts off, and can obtain submounts.
＜ embodiment 2 ＞
In present embodiment, use Fig. 3, Fig. 4 that the rigid and flexible substrate of situations below is illustrated, this rigid and flexible base Plate constitutes the outermost thermoplastic resin sheet of above-mentioned second resin sheet and above-mentioned second resin sheet is completely covered not The surface contacted with the first resin sheet.Fig. 3 is the cross-sectional schematic of the rigid and flexible substrate of embodiment 2.Fig. 4 is to represent real Execute the cross-sectional schematic of the rigid and flexible substrate of mode 2 state before stacking punching press.It addition, for embodiment 1 weight Multiple content omits part explanation.
As it is shown on figure 3, the rigid and flexible substrate of present embodiment is comprising the first resin of two layers of thermoplastic resin sheet 3 It is laminated with respectively in a two-sided part (becoming the part of rigid portion) for sheet material 1 and comprises the of two layers of thermoplastic resin sheet 3 Two resin sheets 2.Ora terminalis in the flexible part side of this second resin sheet 2 is formed with tapered portion 21, and tapered portion 21 is second Thickness on the stacked direction (longitudinal direction in figure) of resin sheet 2 is more proximate to flexible part and reduces, and is contacting with flexible part Position be essentially zero.Thus, the border that can make rigid portion and flexible part becomes smooth shape.
In order to manufacture the rigid and flexible substrate of present embodiment, as shown in Figure 4, first, the second resin sheet 2 is layered in In a two-sided part (becoming the part of rigid portion) for first resin sheet 1.It follows that by the first resin sheet to stacking Material and above-mentioned second resin sheet carry out hot pressing and fetch and disposably crimp thermoplastic resin sheet, can obtain rigid and flexible base Plate.
Herein, as shown in Figure 4, constitute in the multi-disc thermoplastic resin sheet of above-mentioned second resin sheet, outermost heat Plastic resin sheet material 3a length on the direction of the boundary face being perpendicular between flexible part and rigid portion is than constituting the second resin The length of other thermoplastic resin sheet 3b of sheet material to be grown.That is, the outermost thermoplastic resin of the second resin sheet 2 it is layered in The openings of sizes of the opening B of the fat sheet material 3a openings of sizes than the opening A of the thermoplastic resin sheet 3b of its lower floor is little.At this Under the laminated arrangement of sample, by the resin local flow that carries out making thermoplastic resin sheet 3 such appropriate under the conditions of hot pressing Connecing, the ora terminalis in the flexible part side of the second resin sheet 2 forms tapered portion 21.
This time disclosed embodiment should regard as being in all respects illustration and and unrestricted.The scope of the present invention is by weighing The scope that profit requires represents, and is not represented by described above, additionally, the scope of the present invention also includes and claim All changes in the meaning of scope equivalent and scope.
Label declaration
1 first resin sheet
2 second terminal sheet materials
21 tapered portion
3,3a, 3b thermoplastic resin sheet
4 via conductors

Claims (3)

1. a rigid and flexible substrate, this rigid and flexible substrate includes: multiple rigid portion；And connect the plurality of rigid portion Flexible part, it is characterised in that
Described flexible part is made up of a part for the first resin sheet comprising at least one of which thermoplastic resin sheet,
Described rigid portion is by the part beyond the described flexible part of described first resin sheet and is layered in described first resin The second resin sheet comprising multi-disc thermoplastic resin sheet on the single or double of the part beyond the described flexible part of sheet material Material is constituted,
Ora terminalis in the flexible part side of described second resin sheet is formed with tapered portion, and described tapered portion is at described second resin Thickness on the stacked direction of sheet material is continuously reduced towards flexible part, and midway does not produce difference in height, in the position contacted with flexible part The place of putting is essentially zero.
Constitute the material of the thermoplastic resin sheet of described first resin sheet and the thermoplasticity constituting described second resin sheet The material of resin sheet is identical,
At least any one single or double of thermoplastic resin sheet constituting described second resin sheet is laminated with and leads Body connects up,
Described second resin sheet, on the stacked direction of described thermoplastic resin sheet, is more remote from described first resin sheet Material, on the direction vertical with described stacked direction, the distance between itself and described flexible part is the longest.
2. rigid and flexible substrate as claimed in claim 1, it is characterised in that
At least any one single or double of thermoplastic resin sheet constituting described first resin sheet is laminated with and leads Body connects up.
3. a manufacture method for rigid and flexible substrate, described rigid and flexible substrate is the rigid and flexible base described in claim 1 Plate, it is characterised in that including:
In a part for the single or double of the first resin sheet comprising at least one of which thermoplastic resin sheet, stacking comprises The step of the second resin sheet of multi-disc thermoplastic resin sheet；And
Fetch disposably crimp institute by described first resin sheet of stacking and described second resin sheet being carried out hot pressing State the step of thermoplastic resin sheet,
When disposably crimping before the step of described thermoplastic resin sheet, constitute described second resin sheet In multi-disc thermoplastic resin sheet, on the stacked direction of described thermoplastic resin sheet, more it is remote from described first resin sheet The thermoplastic resin sheet of material, on the direction vertical with described stacked direction, it is the longest to the distance between described flexible part,
After thermo-compressed, the ora terminalis in the flexible part side of described second resin sheet forms described tapered portion.
CN201610768330.4A 2011-04-26 2012-04-05 Rigid flexible substrate and method for manufacturing same Active CN106332474B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011-098246 2011-04-26
JP2011098246 2011-04-26
CN201280020123.0A CN103493610B (en) 2011-04-26 2012-04-05 Rigid and flexible substrate and its manufacture method

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Application Number Title Priority Date Filing Date
CN201280020123.0A Division CN103493610B (en) 2011-04-26 2012-04-05 Rigid and flexible substrate and its manufacture method

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CN106332474A true CN106332474A (en) 2017-01-11
CN106332474B CN106332474B (en) 2020-08-14

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JP6149920B2 (en) 2017-06-21
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US9402307B2 (en) 2016-07-26
US20140034366A1 (en) 2014-02-06
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JPWO2012147484A1 (en) 2014-07-28
CN103493610A (en) 2014-01-01

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